On your instructions below it says use 25ml per 1,136 litres but on bottle it says use 10ml per 1,000 litres which one is correct please ?

Good morning. For Pond Klear Xtra we advise using 10ml per 1000L of pond water. I hope this helps with your query. Kind regards, Envii

Does this have to be continually applied or once the bacteria have worked are they are there for good?

all i can say is after six weeks my pond cleared and has been gin clear for two months and shows no sign of clouding i also do not use any filters on this my fifth pond get the plants right and you do not need filters.

How much do I need for a 10000.00 litre pond please.

Hi, 25ml per 1,000 litre, but we recommend double or triple dose initially to help bacteria dominate the bad bacteria.Especially after a warm winter when loads of organics in the pond, if it is in a bad way consider also using Envii Sludge Klear in conjunction to boost bacteria levels. Key for success is getting good bacteria dominating bad bacteria, and you can only do this by numbers. Please feel free to call me during office hours on 01246 240880 if you wouldl like to discuss in more detail. Andy

Does this contain bacteria to control nitrate levels? i use nopo2 to do this, but that's expensive. would this do the same via controlling no3?

As per my other answers, this stuff is next to useless. Look for Blagdon pond products

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

Envii Pond Klear Xtra – Strong Pond Clear Water Treatment, Naturally Clears Green Pond Water – Treats Up To 100,000 litres

Product ID: 48322331

Details

Brand
envii
Item form
Liquid
Item weight
1.08 Kilograms
Liquid volume
100000 Litres
Unit count
1000.0

🐟Safe for all fish & wildlife

💧Treats up to 100,000L water

🦠3x stronger natural bacteria

14408 kr

Duties & taxes included

In stock

Sold byAmazon IcelandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Iceland.

Secure transaction

Description

💦 Clear your pond, clear your mind—naturally powerful pond care!

MASSIVE COVERAGE - Treats up to 100,000 litres—perfect for large ponds or multiple treatments
ECO FRIENDLY SAFE - Non-toxic formula safe for fish, plants, and wildlife, ensuring a balanced ecosystem
SLUDGE WEED CONTROL - Maintains healthy sludge levels and reduces blanket weed growth naturally
EFFORTLESS APPLICATION - Built-in measuring chamber for precise dosing—just 10ml per 1,000 litres
POWERFUL CLARITY BOOST - 3x stronger beneficial bacteria for rapid green water clearance

Envii Pond Klear Xtra is a premium, natural pond treatment featuring billions of beneficial bacteria that is 3 times stronger than the original formula. It effectively clears green and murky water, controls sludge and blanket weed, and treats up to 100,000 litres of pond water. Safe for all fish, plants, and wildlife, it offers an easy-to-use dosing system for reliable, eco-friendly pond maintenance.

Specifications

ASIN	B012NB9YEQ
Best Sellers Rank	2,439 in Garden ( See Top 100 in Garden ) 26 in Water Garden & Pond Treatment
Brand Name	envii
Country Of Origin	United Kingdom
Customer Reviews	4.0 4.0 out of 5 stars (1,977)
Item Form	Liquid
Item Weight	1.08 Kilograms
Liquid Volume	100000 Litres
Manufacturer	Bio8
Model Number	PK1L
Pet Type	Fish
Target Species	Fish
UPC	796890581377
Unit Count	1000.0 millilitre

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

Zainab N.

Fantastic and great service. Shipping was faster than expected.

1 week ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

14408 kr

Duties & taxes included

In stock

Sold byAmazon IcelandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Iceland.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Fatima A.

Best international shipping I've ever tried. Worth every penny!

3 days ago

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

View all Trustpilot reviews